A method to measure soluble organic carbon in seawater includes oxidation of the organic materials to CO2

Question:

A method to measure soluble organic carbon in seawater includes oxidation of the organic materials to CO2 with K2S2O8, followed by gravimetric determination of the CO2 trapped by a column of NaOHcoated asbestos. A water sample weighing 6.234 g produced 2.378 mg of CO2 (FM 44.010). Calculate the ppm carbon in the seawater.